Concrete lamp-standard



. C; BOSS.

CONCRETE LAMP STANDARD.

APPLlCATlON FILED FEB..3,1'9I9.'

E. G. PERL AND L Patented May 4,1920

ELMER G. PERL AND LEIGH C. BOSS,

OF MINNEAPOLIS, MIlN'NESOTA, A SSIGNORS TO MINNESOTA CEMENT PRODUCTS COMPANY, OF MINNEAPOLIS, MINNESOTA, A COR-- PORATION OF MINNESOTA.

CONCRETE LAMP-STANDARD.

Specification of Letters Patent.

Patented May t. 1920.

Y Application,flled February a, 1919, Serial No. 274,711.

To all whom it may concern: I

Be it known that we, Emma Gr. PERL and LEIGH C. Boss citizens of the United States, residing at inneapolis, inthe county of Hennepin and State of Minnesota, have invented certain new and ijiseful Improvements in Concrete Lamp-Standards; and we do hereby declare the following to be a full, clear, andexact description of the-invention, such as will ehable others skilled in the art to which it appertains to make and use the same.

Our invention has for its object to'imprbve the construction and to facilitatethe erection of reinforced concrete lamp standards, and to such ends, generally stated, the invention consists of the novel construction and combination of parts hereinafter described and defined in the claims,

Hitherto, in the erection of lamp standards for electric lamps, it has been customary and deemed necessary to provide small man-holes near to, but outside, of the base of the-standard or lamp supporting column,

for containing various electrical devices, such as dlsconnections between the light and column wires, switches and fuses, some of which, and frequently all of which are inclosed. This kind of'installation is expensive. Moreover, it has not hitherto been an easy matter to anchor concrete lamp standards, and in some places 'it has been impossible or impracticable to apply them. I

This invention provides the standard or column, in its base, with a cast or metal shell which will serve three functions, to wit, first, that of a reinforcement to thebase of the standard or column; second, as an anchoring device for anchoring the column to its foundation; and third, as a housing for the electrical connections, switches and fuses functions of this A Because of the latter noted cast shell, a manhole or box outside of the standard or column is not necessary.

The invention is illustrated in the accompanying drawings, indicate like parts throughout the several views. Referring to the drawings;

Figure 1 is an elevation showing one design of the lamp standard;

wherein like characters Fig. 2 is an elevation of the lower portion of the standard, some parts being sectioned;

Fig. 3 is a vertical section taken on the line of Fig. 4; and

Fig. l is a horizontal section taken on the line -l4 of Fig. 2.-

The concrete body of the column is indicated by the numeral The metallic shell.

which is preferably a casting, is indicatml.

as an entirety, by the numeral 6 and it is made downwardly flaring or approximately bell-shape, but of a" size considerably smaller than the base of the standard,,so that it will be completely covered by the concrete of the base. The body of the stand: ard is preferably cast with an axial hole, and surrounding this hole it is reinforced by vertical rods T around which the concrete of the column is cast. The sheet, 6, on its base flange is formed with a plurality, as shown, of four vertically perforated bosses -8-through which anchoring bolts 9 are adapted to be passed. The lower ends of these anchoring bolts 9 concrete foundation 10 and at their thread-- ed upper ends, they are providedbwith nuts 1 that engage the tops of the bosses 8.. The concrete baseof the column is provided with depressions 12 in line with tlie bosses 8, so that the nuts 11 will be countersunk within the same. These depressions 12 may be filled with concrete or column has been properly set and properly anchored down by tightening of the nuts 11. On its exterior, the metal shell 6 is provided with one or more outstanding anchoringfianges 13 which assist in anchoring the said shell to the base of the column. At one side, the shell (3 is formed with a downwardly and outwardly Haring endless flange 14 that affords an entrance for the hand or hands from the. exterior of the column; The rim of this flangell is so formed that it carries out the design of the exterior will be cast into the.

cement after the provided with an inwardly projectingfiang'e 17 to which the various dev ces, such as a switch, fuse plug, or the like, may be at- .tached.

From the foregoing it is evidentthat the cast in metal shell'not only reinforces the base; of the column but is rigidly tied-to the upper portion ofthe column and that it is this shell that is directly anchored to the foundatiom The anchoring strain is therefore, transmitted from the foundation, first to the said metal shell and from thence is distributed through the column. Inpractice, the anchoring bolts '9 can be properly set in advanceat any suitable place in any concrete foundation, or elsewhere, and the "erection of the column requires only that the col umn'be properly set on these b0. and the nuts of the bolts tightened. When the-column is set, it is a complete device hav ing a receptacle for switches, electrical conuections, fuses, and the like, making unnecessary any other provision for the installment of such device. The connections from the lead wires which will be in the foundation, are simply brought up into the column '7 and properly connected and these connections maybe made after the column is set on \its foundation. Moreover, the connections may be changed at any time, while the thrown into or out of action. For city street ligle g installations, this is highly desirable, ause it will frequently happen,

for example, that alternate lights will be suflicient or all that will be desired for ligliting purposes.

hat we claim is: I 1. A monolithic concrete column and base having cast therein a hollow metallicanchoring shell that is provided at one side with a manhole forming flange that 'extends to the exterior. of the column. r

i 2. A monolithic concrete column and base having cast' therein a hollow metallic anchoring shell that is provided at one side with a manhole forming flange that extends to the exterior of the. column, and metallic anchoring rods extending from the top of said anchoring shell upward into the bottom of the column.

3. A monolithic concrete column and base I having cast therein a hollow metallic anchoring .shell that is provided at one side with a manhole forming flange that extends to the exterior of the column,- and a detachable cover plate for the manhole desi 'ned to follow the outline of the exterior oi? the column.

4. ,A monohthic concrete column and base,

having cast therein a hollow metallic anchoring shell that is provided at one side with a manhole forming flange that extends to the exterior of the column, the said anchoring shell being. of bell shape form and havin an outstanding below sai -manhole flange.

'In testimony whereof we afiix our signaanchoring flange 'tures in presence of-two witnesses.

ELMER Gr. PERL.

, 1 LEIGH C. BOSS.

Witnesses:

' F D. MERCHANT,

HARRY D. KILqoRE. 

